THE EFFECT OF IRON SUPPLEMENTATION ON THE PHYSICAL WORK CAPACITY IN THE ELDERLY
| Autor: | Per Ericsson |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Male
medicine.medical_specialty Iron Physical Exertion Positive correlation Placebo Placebos Hemoglobins Sex Factors Animal science Bone Marrow Oral administration Total iron-binding capacity Internal Medicine medicine Humans Aged Binding Sites Blood Volume medicine.diagnostic_test business.industry Age Factors Nutritional Requirements Middle Aged Physical work Exercise Test Lactates Physical therapy Iron supplementation Female Negative correlation business |
| Zdroj: | Acta Medica Scandinavica. 188:361-374 |
| ISSN: | 0001-6101 |
| Popis: | The effect of a high oral iron supplementation (120 mg day) on the physical work capacity has been studied in a group of apparently healthy men and women of ages 58–71 years, and this effect was correlated with the initial values of and changes in some variables constituting usual clinical estimates of the state of iron nutrition. The increase in physical work capacity was about 4% higher in men and about 12% higher in women in the group supplemented with iron than in the control (placebo) group. In the control group there was a positive correlation between increase in physical work capacity and initial value for stainable iron in the bone marrow, and a negative correlation between increase in physical work capacity and decrease in the value for stainable iron in the bone marrow; it is pointed out that these findings should not be expected in the iron-supplemented group, where variations in the depot iron will be of less influence. In the iron-supplemented group the total iron binding capacity decreased significantly, while the remaining variables constituting estimates of the state of iron nutrition showed no significant changes. The increase in physical work capacity in the iron-supplemented group did not appear to be correlated to the initial value either for haemoglobin concentration or for other variables estimating the state of iron nutrition. It is concluded that in apparently healthy people the increase in physical work capacity during moderate training is related to the availability of iron. |
| Databáze: | OpenAIRE |
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